Gate Opening Apparatus with Gear Assembly

A gate opening apparatus for a door gate, comprising:

• a housing having a supporting portion pivotally connected to an external anchor, and a mounting portion extending toward the door gate, the housing having a receiving cavity and an engagement slot communicating the receiving cavity with an exterior of the housing;
• a motor received in the receiving cavity of the housing;
• and
• a gear assembly, which comprises:
• a gear rod having one end connected to the motor without connecting through any clutching device, and another end extending in the receiving cavity toward the mounting portion of the housing, the gear rod having a plurality of first teeth spirally formed thereon;
• and
• a driven member having a plurality of second teeth engaging with the first teeth of the gear rod, in such a manner that when the gear rod is driven to rotate, the driven member is arranged to move along a longitudinal direction of the housing, the driven member being connected to the door gate;
• wherein the gate opening apparatus is arranged to be selectively operated between a power mode and a manual mode, wherein in the power mode, the motor is electrically activated to drive the gear rod to rotate so as to drive the driven member to move along a longitudinal direction of the housing for driving the door gate to move in a pivotal manner with respect to the external anchor, wherein in the manual mode, the motor is cut off from electricity and is arranged to exert minimal mechanical resistance so that a user is able to manually move the door gate for opening or closing thereof.